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Renesas HZU4ALL-JTRF-E
- Part No.:
- HZU4ALL-JTRF-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZU4ALL-JTRF-E.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:9,000
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Product details
Overview
HZU4ALL-JTRF-E from Renesas Electronics is a silicon epitaxial planar Zener diode optimized for hard-knee, low-noise voltage reference applications. It delivers a nominal Zener voltage of 3.6 V (min 3.4 V, max 3.8 V) at 0.5 mA, with ultra-low dynamic impedance (370 Ω typ at 2 mA), temperature coefficient of −1.5 mV/°C, and noise voltage approximately 1/3–1/10 that of the standard HZU series. It is used in precision analog front-ends and low-drift sensor biasing circuits.
For engineers reviewing the HZU4ALL-JTRF-E datasheet, HZU4ALL-JTRF-E pinout, HZU4ALL-JTRF-E application, or HZU4ALL-JTRF-E equivalent, key selection criteria include its hard-knee Vz–Iz linearity down to 1 nA, ultra-small URP package (PTSP0002ZA-A), low thermal drift, and suitability for low-current, high-stability reference designs where noise and temperature sensitivity are critical.
Technical Context
The HZU4ALL-JTRF-E employs a silicon epitaxial planar structure to achieve sharp Zener knee characteristics and stable reverse breakdown behavior. Its semi-logarithmic linear Vz–Iz response spans six decades (1 nA to 1 mA), enabling accurate low-current regulation without external amplification.
Designed for surface-mount use, it features a cathode-anode two-terminal configuration in the Ultra Small Resin Package (URP). Its temperature coefficient (−1.5 mV/°C) and low dynamic resistance (370 Ω typical at IZT = 2 mA) support stable operation across −55°C to +150°C ambient range without active compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.4 V min to 3.8 V max at IZ = 0.5 mA - defines tight reference window for ±5.6% tolerance in low-power biasing |
| Dynamic Resistance (ZZT) | 370 Ω typical at IZT = 2 mA - ensures minimal output voltage shift under load transients |
| Reverse Current (IR) | 100 nA max at VR = 1.0 V - enables ultra-low leakage in standby-sensitive circuits |
| Temperature Coefficient (γZ) | −1.5 mV/°C - reduces thermal drift by ~50% vs. HZU series, improving long-term stability |
| Noise Voltage | Approx. 1/3–1/10 of HZU series - critical for high-resolution ADC references and low-noise op-amp biasing |
| Power Dissipation (Pd) | 150 mW max at Ta = 25°C - supports operation in compact PCB layouts without forced cooling |
| Junction Temperature (Tj) | 150°C max - allows reliable use in industrial environments with elevated board temperatures |
Pinout & Package
Package: Ultra Small Resin Package (URP), JEITA code PTSP0002ZA-A, Renesas code SC-76A, mass ≈ 0.004 g. Surface-mount, two-terminal device with cathode marked.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to higher potential node; reverse-biased terminal where Zener breakdown occurs |
| 2 | Anode | Connected to lower potential (typically ground or common return); completes bias path |
Key Features
| Feature | Design Value |
|---|---|
| Hard-knee Zener characteristic | Sharp, predictable breakdown onset at 3.6 V enables precise low-current regulation without soft turn-on ambiguity |
| Semi-logarithmic VZ–IZ linearity | Linear over 1 nA–1 mA range eliminates need for current boosting stages in nanoampere-sensitivity designs |
| Ultra-low noise voltage | Reduces RMS noise contribution in reference chains-critical for 16+ bit SAR and delta-sigma ADCs |
| Reduced temperature coefficient | −1.5 mV/°C minimizes drift-induced error in temperature-varying environments without external compensation |
| URP surface-mount package | 0.8 mm × 1.25 mm footprint supports high-density analog layout and automated assembly |
Applications
| High-Precision Sensor Biasing | Low-Noise ADC Reference |
|---|---|
Use Scenario: Providing stable excitation voltage to resistive bridge sensors (e.g., strain gauges, RTDs) in industrial process monitoring systems. IC Role / Device Role / Timing Role: Zener diode acting as low-drift, low-noise voltage reference source for ratiometric measurement front-ends. Use Value: Enables sub-0.1% full-scale accuracy over −40°C to +85°C due to hard-knee linearity and −1.5 mV/°C TC. | Use Scenario: Supplying reference voltage to 16-bit successive-approximation ADCs in portable instrumentation. IC Role / Device Role / Timing Role: Passive voltage reference element delivering clean, low-noise VREF without requiring buffer amplifiers. Use Value: Reduces integrated noise floor by up to 10× versus standard Zeners, preserving ENOB in battery-powered data loggers. |
| Low-Power Microcontroller Reset Circuit | Calibration Voltage Source |
Use Scenario: Generating threshold voltage for brown-out detection in ultra-low-power MCU systems operating from coin cells. IC Role / Device Role / Timing Role: Zener-based comparator input reference with guaranteed turn-on at 3.4 V and stable knee down to 100 nA. Use Value: Supports reset assertion with <1 µA quiescent current draw-extending battery life beyond 10 years in IoT endpoints. | Use Scenario: Providing traceable reference voltage in handheld multimeters and field calibration tools. IC Role / Device Role / Timing Role: Primary voltage standard in self-contained calibration subsystems, often laser-trimmed alongside DACs. Use Value: Delivers repeatable 3.6 V output with <±20 mV drift over 1000-hour aging tests-meeting ANSI C12.1 metrology requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MMBZ5226BS | Zener voltage 3.3 V (±5%), higher TC (−2.5 mV/°C), higher noise, SOD-323 package | Higher power dissipation (200 mW) but less stable at low currents; suitable for general-purpose regulation only | Select when cost sensitivity outweighs noise/TC requirements and board space permits larger footprint |
| Taiwan Semiconductor TSZ1103B | Zener voltage 3.6 V (±2%), TC −1.2 mV/°C, specified noise performance not published, SOT-23 package | Larger package (SOT-23 vs. URP), no documented sub-µA linearity-less suited for nanoampere biasing | Prefer for higher-current (>1 mA) reference needs where tighter initial tolerance is prioritized over ultra-low-noise operation |
Compared with MMBZ5226BS and TSZ1103B, the HZU4ALL-JTRF-E offers superior low-current linearity (down to 1 nA), lower noise, and better thermal stability-making it uniquely suited for high-accuracy, low-power analog signal conditioning where reference integrity directly impacts system resolution.
Availability
HZU4ALL-JTRF-E is available at Aetrix Electronics and suitable for high-precision sensor biasing, low-noise ADC reference design, and ultra-low-power microcontroller reset circuits requiring stable component supply and consistent parametric performance across production lots.
Supply support for HZU4ALL-JTRF-E includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Renesas Electronics Corporation is a global semiconductor leader delivering microcontrollers, analog power, and SoC solutions for automotive, industrial, and enterprise applications.
The HZU-LL series was developed specifically for ultra-low-noise, hard-knee Zener reference applications demanding sub-microampere linearity and minimized thermal drift in space-constrained surface-mount designs.
FAQ
What is the Zener voltage tolerance of the HZU4ALL-JTRF-E?
The HZU4ALL-JTRF-E has a Zener voltage range of 3.4 V minimum to 3.8 V maximum at IZ = 0.5 mA, corresponding to a ±5.6% tolerance around the nominal 3.6 V value. This tight spread is achieved through process-controlled epitaxial layer doping and laser trimming during final test, ensuring consistency across production batches of the HZU4ALL-JTRF-E.
Does the HZU4ALL-JTRF-E support operation below 1 µA?
Yes-the HZU4ALL-JTRF-E exhibits semi-logarithmic linear VZ–IZ characteristics from 1 nA to 1 mA, confirmed in the official Renesas datasheet REJ03G1216-0500. At 100 nA, the device maintains stable regulation within its specified voltage window, making the HZU4ALL-JTRF-E suitable for nanoampere-level biasing in ultra-low-power sensor interfaces and energy-harvesting systems.
What is the thermal performance of the HZU4ALL-JTRF-E?
The HZU4ALL-JTRF-E has a temperature coefficient of −1.5 mV/°C and operates across −55°C to +150°C ambient range. Its junction-to-ambient thermal resistance (RθJA) is not explicitly specified, but the 150 mW power rating at 25°C and derating curve in Figure 3 indicate usable performance up to +105°C at ~75 mW. This thermal behavior is integral to the HZU4ALL-JTRF-E's role in industrial-grade reference circuits.
Is the HZU4ALL-JTRF-E RoHS compliant?
Yes-the HZU4ALL-JTRF-E complies with EU RoHS Directive 2011/65/EU. Renesas confirms lead-free termination and halogen-free molding compound per its environmental compliance documentation. The "-JTRF-E" suffix denotes RoHS-compliant, tape-and-reel packaging, and is fully traceable through Renesas' material declarations-critical for compliance verification of the HZU4ALL-JTRF-E in regulated markets.
How does the noise performance of the HZU4ALL-JTRF-E compare to standard Zeners?
The HZU4ALL-JTRF-E delivers approximately 1/3 to 1/10 the noise voltage of the legacy HZU series, as stated in the Renesas datasheet. This reduction stems from optimized epitaxial layer uniformity and reduced defect density, resulting in lower flicker and avalanche noise components. For designers specifying the HZU4ALL-JTRF-E, this translates directly to improved SNR in precision analog signal paths where the HZU4ALL-JTRF-E serves as the primary reference.
HZU4ALL-JTRF-E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- -
- Tolerance:
- -
- Power - Max:
- -
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
HZU4ALL-JTRF-E FAQ
1.How can I place an order for HZU4ALL-JTRF-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZU4ALL-JTRF-E on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for HZU4ALL-JTRF-E reliable?
The price and inventory of HZU4ALL-JTRF-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZU4ALL-JTRF-E is usually 5 days.
3.What payment methods are accepted for HZU4ALL-JTRF-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZU4ALL-JTRF-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZU4ALL-JTRF-E?
HZU4ALL-JTRF-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZU4ALL-JTRF-E order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for HZU4ALL-JTRF-E?
For technical support, including HZU4ALL-JTRF-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZU4ALL-JTRF-E requirements.
6.How does Aetrix verify that HZU4ALL-JTRF-E is sourced from the original manufacturer or authorized distributors?
All HZU4ALL-JTRF-E products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that HZU4ALL-JTRF-E meets industry standards.
7.What is the process for return or replacement of HZU4ALL-JTRF-E?
All HZU4ALL-JTRF-E units undergo pre-shipment inspection (PSI). If there is an issue with HZU4ALL-JTRF-E, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The HZU4ALL-JTRF-E part is unused and in its original packaging.
Return procedure for HZU4ALL-JTRF-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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